From: Tim Bird <tim.bird@am.sony.com>
To: Will Newton <will.newton@gmail.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] init/main.c: Use ktime accessor function in initcall_debug code.
Date: Thu, 20 Nov 2008 09:39:08 -0800 [thread overview]
Message-ID: <4925A0BC.7050207@am.sony.com> (raw)
In-Reply-To: <87a5b0800811200647t4de76a2ah683ac6083014d061@mail.gmail.com>
Will Newton wrote:
> The initcall_debug code access the tv64 member of ktime. This won't work
> correctly for large deltas on platforms that don't use the scalar ktime
> implementation.
In principle I see no problem with this. But as a matter of
practice it may be overkill.
How big does the delta have to be for this to be a problem?
And how much overhead does ktime_to_ns() add?
-- Tim
=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Corporation of America
=============================
next prev parent reply other threads:[~2008-11-20 17:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-20 14:47 [PATCH] init/main.c: Use ktime accessor function in initcall_debug code Will Newton
2008-11-20 17:39 ` Tim Bird [this message]
2008-11-20 17:46 ` Will Newton
2008-11-20 18:28 ` Tim Bird
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